Fastener for can covers



Jan. 22, 1929. 1,699,780

A. EKDAHL FASTENER FOR CAN COVERS Filed Oct. 17, 1927 li atented Jan, 22, 1929..

STA

ALBERT EKDAHL, 015 BOSTON, MASSACHUSETTS; EDWIN A. EKIDAHL ADMINISTRATOR OF SAID ALBERT EKDAHL, DECEASED.

FASTENEB, FOR CAN COVERS.

Application filed October 1'7, 1927. Serial No. 226,584.

This invention relates to a can having a flanged. cover, the cover flange enjibracing the mouth portion of the can.

lhe objectis to provide simple and eflective means for fastening the cover to the can in such manner that the cover is not liable to he accidentally unfastened, and may be readily unfastened for removal.

(lf the accompanying drawings forming a part of this specilication,-

Figure 1 shows in perspective a portion of a can, its cover and cover-fastening means embodying the invention, portions of the can and cover being broken away.

Figures 2, 3 and l are fragmentary views, showing in section portions of the can and the fastening strip hereinafter described, Figure 1 showing also a portion of the cover.

Figure 5 shows a perspective, the fastening strip in the condition shown by Figure 2.

Figure 6 shows the lower end portion of the fastening strip, partly bent outward from the can by the cover flange and the can head.

The same reference characters indicate the same parts in all of the figures.

12 designates a can, preferably of sheet metal, having an inwardly projecting hooked flange 13 at its mouth and an outwardly projecting head 21, spaced from the flange 13 by a cover flange seat. 14 designates the cover, also preferably of sheet metal, having a flange 15, surrounding the mouth of the can, and conforming to the flange seat, and provided at its lower edge with an outwardly projecting head 16.

17 designates a flexible fastening strip, preferably of sheet metal, interposed between the flange seat and the cover flange and havi an" an inner hook 18 at one end engaged with the hooked flange 13 of the can, and an outer hook 19, at its outer end, engaging the cover head 16.

The strip 17 originally formed as shown by Figure 5. Before the cover is applied to the can, the strip first engaged with the hooked flange 13, as shown by Figure 2, and then bent downwardly, as shown by Figure 2, the strip extending across the coverolange seat and the can rib 21, and being inclined by said rib so that its lower end portion is spaced from the can below the rib, as shown by Figure 3. The cover is then applied to the can, as indicated by Figures 1 and 1, the flange 15 pressing the major portion of the strip closely against the cover-flange seat. The lower end portion of the strip is bent outwardly by the cover flange, as shown by Fig ure 6, during the application of the cover, said portion being engageable with the cover head 16, by additionally bending it to form the outer hook 19.

It will now be seen that the fastening strip is confined against downward movement by the engagement of its inner hook 18 with the hooked flange 13 of the can, and against lateral movement by the cover flange 15, so that the outer hook 119 is confined in position to prevent removal of the cover. The flexibility of the fastening strip permits displacement of the outer hook 19, as indicated by dotted lines in Figure l, thus permitting the removal of the cover. Any desired number of fastening strips may be employed, the preferred number being three. In practice, the thickness of the fastening strip is considerably less than as shown by the drawings, so that the strip does not cause a crevice of objectionable width between the cover flange and the can. The outer hook 19, which is located below the top of the cover, is the only exposed portion of the fastening strip, and is not liable to he accidentally displaced.

I claim: In combination, a can having an inwardly projecting hooked flange at its mouth, and an outwardly projecting bead spaced from the hooked flange by a cover-flange seat; a flexible fastening strip having; an inner hook engaged with the hooked can flange, the strip extending across the cover seat and can bead, and being inclined by the latter so that its lower end portion is spaced from the can when the inner hook is engaged with the hooked flange; and a cover having a flange conforming tothe cover seat and adapted to press the major portion of the strip against the cover seat, and to cooperate with the can bead in outwardly bending the lower end portion of the strip when the cover is applied, the cover flange having an outwardly projecting head at its lower edge with which the bent portion of the strip is engageable, to fasten the cover.

In testimony whereof I have aflixed my signature.

ALBERT EKDAHL. 

